1072-67-9, Name is 5-Methylisoxazol-3-amine, belongs to isoxazole compound, is a common compound. category: IsoxazolesIn an article, once mentioned the new application about 1072-67-9.
New and improved synthetic route of tivozanib is described on a hectogram scale. An reduction cyclization process to prepare the key intermediate 6,7-dimethoxyquinolin-4-ol from the 3-(dimethylamino)-1-(2-nitrophenyl)prop-2-en-1-one compound at H2/Ni condition is adopted in good result. Commercially available materials, simple reaction and operation are used, including nitration, condensation, hydrogenation, chlorination and so on, to give the final product in 28.7% yield over six steps and 98.9% purity (HPLC).
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Referenceï¼?br>Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem